package homework;

import java.util.ArrayList;
import java.util.Scanner;

public class work06 {
	public static void main(String[] args) {
		ArrayList<Integer> list=new ArrayList<Integer>();
		
		Scanner sc=new Scanner(System.in);
		int num1=sc.nextInt();
		int num2=sc.nextInt();
		int num3=sc.nextInt();
		sc.close();
		list.add(num1);list.add(num2);list.add(num3);
		System.out.println(list);
		change(list);
	}

	public static void change(ArrayList<Integer> list) {
		System.out.println("{"+list.get(0)+"@"+list.get(1)+"@"+list.get(2)+"}");
	}
}
